Apparatus for making paper containers



July 21, 1931. E. c. ANGELL 1,815,136

APPARATUS FOR MAKING PAPER CONTAINERS Filed March 25, 1929 2Sheets-Sheet 1 E5 5AM INVENTOR ATTORNEY July 21, 1931. E. c. ANGELL'1,815,136

APPARATUS FORMAKING PAPER CONTAINERS Filed March 25. 1929 2 Sheets-Sheet2 INVENTOR ATTORNEY Patented, July 21, 1931 UNITED STATES EDWARD c.ANGELL, on NEW YORK, 1v. Y.

APPARATUS FOR MAKING PAPER CONTAINERS Application filed March 25, 1929.Serial No. 349,767.

This invention relates to apparatus for forming paper containers, of thetype comprising a body substantially tubular or conical, with a flangedbottom inserted into one end and secured by rolling or spinning theflange and the body end.-

The object of the present invention is to provide a ledge or shoulder inthe body near the end portion, to receive the edge of the body flangemember as inserted, and

facilitates the rolling, or spinning of these the sleeve will inclosethe end portion '10 0 two members. In the accompanying drawings showingoneembodiment of my inven-- tion; Fig. 1 isa horizontal section throughthe device.

Fig. 2 is a section enlarged through the part engaging the container.Fig. 3 is a plan view partly in section showing further details of theapparatus.

Fig. 4 is a detail of operating mechanism for the forming device.

As shown in Figs. 1 and 2, the body portion of the container, here shownas conical, is placed in a holder 7 havin a conical bore 8 correspondingto the b0 y, and which body is shown as projecting beyond the end wall 9of the holder by a'portion 10, the holder being smaller than the body topermit itsinsertionin just this position.

A plunger 11 slides in guide blocks 12, 13, and a coil spring 14:pressed between a collar 15 on the plunger, and the block 12 will resistinward movement of the plunger.

At its forward end the plunger is secured to a head 16 of-cylindricalshape whose outer end portion 17 may be slightly reduced, and which isof a diameter slightly greater than the opening or bore of the end wall10 of the holder 7. A sleeve 18 slides at its bore on the'head 16, withan apertured end wall 19 slidable on the plunger 12; A coil spring 20 iscompressed between the sleeve end 19 and a collar 21 fast on the iplunger 11. The latter will force the sleevesee Fig. 1, this end willregisterwith this annular space and will pass therein as the head andsleeve, now in the relative positions shown in Fig. 1,, advance. Sincethe sleeve normally projects beyond the head the body, and the plungeris advanced to bring the sleeve end wall against the end wall 9 of theholder as shown in Fig. 2, that will arrest the sleeve. But thecontinued advance of the plunger will carry the head 16 forward from itsnormal position inside of the sleeve as in Fig.1, and the head will passinside of the body projecting end 10, that is conical. The end of thehead is the same size as the extremity of the conical body, and as thehead will now advance through the arrested sleeve by advance of theplunger, permitted by comparession of spring 20, the cylindrical headwill'move into the conical body end, that is of decreased diameter. Andtherefore the body end portion must expand, permitted by the annularspace between the head and the bore of the sleeve. Continued advance ofthehead through the sleeve will take place until the head presses thebody, now expanded against the end wall 9, whose bore is slightlysmaller than the head. This will result in a ledge or shoulder beingformed between the outer portion of the head at the end, and the wall 9of the holder, as clearly shown in Fig. 2. And it will be further seenthat beyond this shoulder the body portion is now substantiallycylindrical. This will better adapt the body to receive the end member,in the form of 'a flanged cup, that is.inserted into this expanded endof the body, until the body disc portion engages this shoulder.

The general operation of the machine is indicated in Fig. 3, where thebodies are formed at 30 and fed into theholders that are carried on anendless chain. At an advanced station 31 the flanged cap member .isinserted in the body in the holder; and at a further advance station 32the body and the flanged bottom are rolled together by a spinningoperation. The present invention is applied at the station 33 before theholders reach thestation 31 to receive the bottom, and here the body istreated to form the shoulder and enlarged end portion, by the mechanismshown in Fig. l and the several devices are driven from a main shaft 34and a cam 35 onthis shaft engages the roller 36 on the end of theplunger 11, with a slotted guide 37 that straddles the shaft 34, thespring 1 1 pressing the plunger roller against the cam.

A machine of this character is shown in the patent to Stanley 1,628,074.In thesaid Stanley apparatus a shoulder is not formed in the body priorto the insertion of'the bottom, but when the bottom is forced in by aplunger-head, the. flanged bottom is caused by the head to expand thebody outwardly into a shoulder in the holder. A similar arrangement isshown in other patents. With the present invention however,

a shoulder is formed in the body previous to the insertion of theflanged bottom, and facilitiates the operation of the machine.

What I claim is 1. In a machine for forming paper containers with aflanged bottom inserted and secured in one end of a body, thecombinat1on with a carrier for the body that is advanced to bring thebody to a certain station, means at one station for inserting a bottomin the body and means at an advanced station to secure the bottom in thebody end ortion, of means at a station in advance 0' said stations toengage the body before the insertion of the bottom which means isarranged to impart a special shapmg to the body end portion adapted to'receive the bottom and facilitate the securing of the bottom in thecontainer.

2. In a machine for forming paper containers with a flanged bottominserted and secured in one end of a body, the combination with acarrier for the bodies that is advanced to bring the body to certainstations, means at one station for inserting the.

bottom in the body and means at an advanced station to secure the bottomin the body end portion, of means at a station in advance of saidstations to engage the body before the insertion of the bottom whichmeans 1s arranged to impart a special shaping to the body end portion toform an innerledge, adapted to receive the bottom and facilltate thesecuring of the bottom in the container. 3. In a machine for formingpaper contamers of conical form with a flanged bottom inserted andsecured in one end of a body, the combination with a carrier for thebody that is advanced to bring the body to tainers of conical form witha flanged bottom inserted and secured on one end of the body, thecombination with a carrier for the bodies that is advanced to bring thebod1es to a certain station, means at one station for inserting thebottom in the bodies and means at an advanced station to secure thebottom in the body end portion, of means at a station in advance of saidstations to engage the conical body end portion before the-m sertion ofthe bottom, whichmeans is arranged'to impart a special. shaping to thebody end portion to form an 1nner ledge adapted to receive the bottomand facilitate the securing of the bottom in the body.

5. In a machine for forming paper containers with a flangedbottom'inserted and secured in one end of the body, the comb1- nationwith a carrier for the bodies that is advanced to bring the bodies tocertain stations, means at one station for inserting the bottom in thebodies and means at an advanced station to secure the bottom in the bodyend portion, of means at a station in advance of said stations tosupport the body before the insertion of the bottom, which meansincludes a die arranged to engage the inner wall of the body to press itoutwards to form a shoulder in the wall, whereby to engage the insertedbottom.

6. In a machine for forming paper containers of conical form with aflanged bottom inserted and secured in one end of the body, thecombination with a carrier for the bodies that is advanced to bring thebodies to certain stations, means at one station for inserting thebottoms in the bodies and means at an advanced station to secure thebottom in the body end portion, of means at a station in advance of saidstations to engage the body before the insertion of the bottom, which.means includes a die arranged'to engage the inner wall of the body topress. it outwards to form a shoulder in -'the body conical wall,whereby to engage the bottom when inserted.

7. In a machine for forming paper containers with a flanged bottominserted and secured in one end of the body, the combination with acarrier for the bodies that is advanced to bringthe body to certainstations, means at one station for inserting the .bottom in the bodiesand means at an ad- 130 conical body vanced station to secure the bottomin the body end portion, of means at a station in advance of saidstations to engage the body before the insertion of the bottom, whichmeans includes a die arranged to engage the inner wall of the body topress it outwards and make it cylindrical with a shoulder at theconnection with the body wall, whereby to engage the end of theflange ofthe in serted bottom.

8. In a machine for forming paper containers of conical form with aflanged bottom inserted and secured in one end of the body, thecombination with a carrier for the bodies that is advanced to bring thebodies to certain stations, means at one station for insertingthebottoms in the bodies and means at an advanced station to secure thebottom in the body end portion, of means at a station in advance of saidstations to engage the body before the insertion of the bottom, whichmeans includes a die arranged to engage the inner wall of the body topress it outwards and .make it cylindrical with a L shoulder at theconnection with the conical body, whereb to engage the end of the bottomflange w en inserted.

9. The combination of a holder having a conical bore adapted to receiveand hold a conical body of paper that will project beyond the end wallof the holder at-the larger end for a short distance, aplunger, a sleeve.carried by the plunger that is movable relative to the holder to bebrought against the larger end of the holder with the sleeve boresurrounding the projecting end of the body, a head carried by theplunger and movable inside of the said sleeve, which head-is smallerthan the sleeve bore whereby an annular space is provided between thehead and the sleeve adapted to receive the body end portiontherebetween, means for advancing the sleeve to inclose the bodyprojecting end until the sleeve engages the holder end wall, and meansfor thereupon advancing the head into the body to press it outwardlytoward the sleeve bore, the head being slightly larger than the holderbore at its outer end, whereby to cause the head to expand the body endportion to form ashoulder in the body end portion between the head andthe said end wall of the holder.

10. The combination of a holder having a conical bore adapted to receiveand hold a of paper that will project bebetween the head and the sleeveto receive the body end portion-therebetween, spring connectingthesleeve with the head, means for advancing the plunger to cause thesleevev to inclose the body projecting end until the sleeve has advanced toengage the holder, and further advance of the plunger Wlll furtheradvance the head into the arrested sleeve and into the body to press thebody outwardly. toward the sleeve bore, the head being slightly largerthan the holder bore at its outer end, whereby to cause the head toexpand the body end portion to form a shoulder in the body end portionbetween the head and the said end wall of the holder.

Signed at- New York city, N. Y., on March EDWARD G. ANGELL- yond the endwall of the holder at the larger end for a short distance, a plunger, asleeve carried by the plunger that is movable relative to the holder tobe brought against the larger end of the holder with the sleeve boresurrounding the projecting end of the body, a head rigidly carried bythe plunger and movable inside of the said sleeve,wh1ch head is smallerthan the sleeve bore, whereby an annular space is provided

